Joined: Oct 2011
Posts: 10,043
Likes: 2,505
From: Fairplay Co
Bikes: Current 79 Nishiki Custum Sport, Jeunet 620, notable previous bikes P.K. Ripper loop tail, Kawahara Laser Lite, Paramount Track full chrome, Raliegh Internatioanl, Motobecan Super Mirage. 59 Crown royak 3 speed
To figure out how change like this is may negatively effect handling, it would help to know the size of the frame and geometry. On a fairly small stiff frame with tight geometry short wheelbase slight changes an cause significant changes in handling ride, while on larger frames with fairly long wheelbase and slightly relaxed fit you an make some fairly big changes in setup without much effect. Typically less than 20mm change in stack stem hieght won't have much of a negative effect on handling.